1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
balu736 [363]
4 years ago
6

help me plz answere this question plz. . . Which statement best compares momentum and kinetic energy?. . answeres plz help:. . A

. if you dubble the velocity of an object, its kinetic energy doubles. but for the same increase in velocity, the momentum increases 4 times.. B. if you dubble the velocity of an object, its momentum doubles. but for the same increase in velocity, the momentum increases 4 times.. C. if you dubble the velocity of an object,its momentum and kinetic energy doubles. D. if you dubble the velocity of an object, its monentum and Kinetic energy dubbles. .
Physics
2 answers:
ad-work [718]4 years ago
6 0
B. if you double the velocity of an object, its momentum doubles. but for the same increase in velocity, the kinetic energy increases 4 times..
Nat2105 [25]4 years ago
3 0
The correct answer among the choices given above is option B. Momentum and kinetic energy are compared by the statement "If you double the velocity of an object, its momentum doubles. but for the same increase in velocity, the kinetic energy increases 4 times.
You might be interested in
Where would a Christmas tree be most likely to grow?
sveticcg [70]
Taiga is the answer.

Hope it helps!
3 0
3 years ago
Dario, a prep cook at an Italian restaurant, spins a salad spinner and observes that it rotates 20.0 times in 5.00 seconds and t
ziro4ka [17]

Answer:

(a). The acceleration is 8.3 rad/s².

(b). The time is 3.0 sec.

Explanation:

Given that,

Rotation = 20.0 times

Time = 5.00 sec

We need to calculate the angular frequency

Using formula of angular frequency

\omega_{i}=20\times\dfrac{2\pi}{T}

put the value into the formula

\omega_{i}=20\times\dfrac{2\pi}{5.00}

\omega_{i}=8.00\pi

We need to calculate the angular displacement

Using formula of  angular displacement

\theta=6\times2\pi=12\pi

We need to calculate the angular acceleration

Using equation of angular motion

\omega_{f}^2-\omega_{i}^2=2\alpha\times\theta

0-64\pi^2=2\times12\pi\times\alpha

\alpha=-\dfrac{64\pi^2}{24\pi}

\alpha=-8.3\ rad/s^2

Negative sign shows the opposite direction of the motion.

The acceleration is 8.3 rad/s².

We need to calculate the time

Using equation of angular motion

\omega_{f}-\omega_{i}=\alpha\times t

0-8\pi=-8.3t

t=\dfrac{8\pi}{8.3}

t=3.0\ sec

The time is 3.0 sec.

Hence, (a). The acceleration is 8.3 rad/s².

(b). The time is 3.0 sec.

4 0
3 years ago
What would be the magnitude of the electric field 0.75 m from a 0.63 C master charge and what would be the force on a 0.50 C tes
bagirrra123 [75]

The magnitude of the electric field on the master charge is 1.008 x 10¹⁰ N/C, and the force on the test charge is 5.04 x 10⁹ N.

<h3>Electric field on the master charge</h3>

E = kq/r²

where;

  • q is magnitude of master charge
  • r is distance of separation
  • k is Coulomb's constant

E = (9 x 10⁹ x 0.63)/(0.75²)

E = 1.008 x 10¹⁰ N/C

<h3>Force on the test charge</h3>

F = Eq

where;

  • E is electric field
  • q is the test charge

F = (1.008 x 10¹⁰) x (0.5)

F = 5.04 x 10⁹ N

Thus, the magnitude of the electric field on the master charge is 1.008 x 10¹⁰ N/C, and the force on the test charge is 5.04 x 10⁹ N.

Learn more about electric field here: brainly.com/question/14372859

#SPJ1

8 0
2 years ago
two friends are talking to another person across the building the other person can hear them but not see them why is this?
Rufina [12.5K]

Answer:

Hey

Say that there was no light on in the building that they were ch,at,tin,g in, then they could hear each other but not see each other.

4 0
3 years ago
The kinetic energy of an object depends on two factors, ___, and ___. HINT: Remember comparing the kinetic energy of the marble
Lisa [10]
D. speed | mass
hope this helps
7 0
3 years ago
Read 2 more answers
Other questions:
  • A ball is thrown vertically upwards from the top of a tower with a speed of 100m/s.it strikes the pound near the base of the tow
    10·1 answer
  • Can gorillas swim well?
    14·2 answers
  • A fire hose ejects a stream of water at an angle of 36.3 ° above the horizontal. The water leaves the nozzle with a speed of 21.
    12·1 answer
  • During spring semester at MIT, residents of the parallel buildings of the East Campus dorms battle one another with large catapu
    6·1 answer
  • In the parallel spring system, the springs are positioned so that the 37 N weight stretches each spring equally. The spring cons
    11·1 answer
  • A stone is thrown straight up from the ground with an initial speed of 44 m/s.At the same instant, a stone is dropped from a hei
    15·1 answer
  • A water wave travels across a 42-meter wide pond in 7.0 seconds. The speed of the wave is _____. 292 m/s 49 m/s 6.0 m/s 0.17 m/s
    15·2 answers
  • Olympic swimmer Michael Phelps swam at an average speed of 2.01m/s during the first half of the time needed to complete a race.
    10·1 answer
  • A car's velocity changes from 0 m/s to 40 m/s in 5 seconds. What is the average acceleration of the car? (Show work)
    15·2 answers
  • Can someone help me with this?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!